How to convert a folder of photos into a single PDF
By the Converterzilla Team
We build privacy-first PDF and image tools that run entirely in your browser. Our team has shipped JavaScript file-processing apps used by thousands every day, and we write here about the libraries, trade-offs and patterns we use.
Sending 30 photos as separate email attachments is a recipe for "did you get them all" follow-ups. PDFs are a better packaging format — one file, ordered, with searchable filenames embedded as page labels.
The right page size
Three sensible defaults: Auto-fit (each page matches the photo's dimensions), A4 (centered with margins, good for printing), and Letter (US printing). For a "share this album" PDF, Auto-fit looks the best because there's no whitespace.
Image order
Most converters use either alphabetical-by-filename or drop-order. If your photos are named IMG_001.jpg, IMG_002.jpg etc., alphabetical works. If they're a mix, drop them in the order you want and use a tool that respects drop order.
Keep an editable copy
Once images are inside a PDF, you can't easily extract them at full resolution. Keep the original folder of images even after building the PDF — you'll thank yourself if you ever need to re-export.
Our Image to PDF tool will build the document in your browser, with auto-fit / A4 / Letter options and drag-to-reorder. It's launching in the next release.